- According to OpenStreetMap and Wikipedia, the name is Sequim Bay, which is not far from the spelling used by Kautz in his diary. According to Wikidata, Washington Harbor is an alternate name for Sequim Bay.
- Hertzsprung–Russell diagram (Wikipedia)
The Hertzsprung–Russell diagram (abbreviated as H–R diagram, HR diagram or HRD) is a scatter plot of stars showing the relationship between the stars’ absolute magnitudes or luminosities and their stellar classifications or effective temperatures. The diagram was created independently in 1911 by Ejnar Hertzsprung and by Henry Norris Russell in 1913, and represented a major step towards an understanding of stellar evolution.